Casserole can be assembled in advance. Refrigerate up to 24 hours. When ready to serve, bake, uncovered, as directed, increasing baking time if needed until filling is heated through.
Prepare using Philadelphia Herb & Garlic Light Cream Cheese Spread, reduced-fat condensed cream of mushroom soup and Kraft Double Cheddar Light Shredded Cheese.
Puff pastry is also available in frozen pre-rolled sheets. If you purchase the pastry in this form, thaw 1 sheet as directed on package. Roll to fit baking dish and continue as directed.